Registering test names with more than one word

[ammarm08]

quasimodo.registerTest('Some Test Name', './path', 'flags', 'args')

will produce an error of:

Please provide a valid isolate file as the final argument.

while the tests are running, but will still continue all the tests.

To-Do:

• Validate registerTest name input to be a single word
• Throw errors with appropriate specificity
• Add to tests (and run similar edge case testing on all other params for registerTest)